A frame for an unmanned delivery vehicle
By using a grid-shaped frame and a cage-like front design, the structural strength and layout issues of the unmanned delivery vehicle frame have been resolved, achieving high rigidity, reasonable layout, and all-round battery protection, thereby improving the safety and stability of the unmanned delivery vehicle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGYUAN ZHIXING (NINGBO) TECH CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-06-30
Smart Images
Figure CN224427554U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned delivery vehicle equipment technology, and in particular to an unmanned delivery vehicle frame. Background Technology
[0002] As a key component of intelligent logistics systems, unmanned delivery vehicles rely heavily on their chassis structure, which forms the fundamental platform for the entire vehicle and directly impacts its stability, safety, range, and spatial layout efficiency. Traditional vehicle chassis are often designed for manned driving scenarios, prioritizing driver cabin space in their layout. This often restricts the placement of components such as batteries and drive units, making it difficult to achieve optimal performance.
[0003] For autonomous delivery vehicles, the traditional driver's cab is eliminated, but a large number of sensing elements (such as LiDAR and cameras), computing units, and actuators are added. This requires the vehicle frame to have: 1) extremely high structural strength and rigidity to protect delicate equipment and ensure driving stability; 2) a reasonable and centralized spatial layout to efficiently accommodate large-capacity battery packs and provide optimal field of view for sensors; and 3) good maintainability to facilitate the rapid replacement of core components such as batteries. Existing vehicle frame structures often struggle to meet these specific requirements simultaneously, exhibiting problems such as loose layout, structural redundancy, or insufficient protection for critical components.
[0004] Therefore, there is an urgent need for a chassis structure that is highly integrated, rigid, and rationally laid out, specifically designed for unmanned delivery vehicles. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a frame for an unmanned delivery vehicle, the specific technical solution of which is as follows:
[0006] An unmanned delivery vehicle frame includes a horizontal mounting frame, a front frame, a battery mounting frame, a front wheel frame, and a rear wheel frame. The front frame is fixedly mounted on the upper surface of the horizontal mounting frame. The battery mounting frame, front wheel frame, and rear wheel frame are respectively disposed on the lower surface of the horizontal mounting frame. The front wheel frame and rear wheel frame are spaced apart, with the battery mounting frame located between the front wheel frame and rear wheel frame. The front frame is positioned directly above the front wheel frame. The horizontal mounting frame includes an outer contour frame, a central partition frame, a front crossbar, and a rear crossbar. Two central partition frames are provided, and the two central partition frames are fixed parallel to each other in the middle of the outer contour frame. The front cross frame and the rear cross frame are fixedly installed on the inner side of the outer contour frame. The front cross frame is perpendicular to the central partition frame near the front wheel frame. The two ends of the front cross frame are respectively fixedly connected to the inner wall of the horizontal mounting frame and the central partition frame. The rear cross frame is perpendicular to the central partition frame near the rear wheel frame. The two ends of the rear cross frame are respectively fixedly connected to the inner wall of the horizontal mounting frame and the central partition frame.
[0007] Preferably, the battery mounting rack includes battery vertical frames and a battery base frame. Four battery vertical frames are provided, and the four battery vertical frames are installed parallel to each other and vertically on the lower end face of the outer contour frame. Two battery vertical frames on the same side are arranged on the same plane as the central partition frame at the same position. The battery base frame is rectangular, and the lower ends of the four battery vertical frames are fixedly connected to the four corners of the battery base frame. The battery vertical frames, battery base frame, outer contour frame and central partition frame form a cubic battery storage compartment.
[0008] Preferably, a protective partition is provided on the bottom frame of the battery near the front wheel frame and the rear wheel frame, respectively.
[0009] Preferably, four first reinforcing frames are provided. One end of each of the four first reinforcing frames is fixedly connected to the side wall of the four battery vertical frames, and the other end of each of the four first reinforcing frames is fixedly connected to the lower end face of the outer contour frame.
[0010] Preferably, the front wheel frame and the rear wheel frame are vertically fixedly installed on the lower end face of the outer contour frame, and the front wheel frame, the outer contour frame and the battery mounting frame form a semi-enclosed front wheel mounting cavity, and the rear wheel frame, the outer contour frame and the battery mounting frame form a semi-enclosed rear wheel mounting cavity.
[0011] Preferably, it includes a front wheel reinforcement frame and a rear wheel reinforcement frame. The front wheel reinforcement frame is inclined and its two ends are fixedly installed on the front wheel frame and the front crossbar, respectively. The rear wheel reinforcement frame is inclined and its two ends are fixedly installed on the rear wheel frame and the rear crossbar, respectively.
[0012] Preferably, the front frame includes a front frame, a rear frame, a bottom frame, and a top frame. The bottom frame is fixedly installed on the upper surface of the outer contour frame near the front wheel frame. The front and rear frames are fixedly installed on the upper surface of the bottom frame. The top frame is fixedly installed on the upper end of the front and rear frames. The rear frame is perpendicular to the outer contour frame, and the front frame is inclined.
[0013] Preferably, a front reinforcing bar is provided between the front frame and the rear frame of the vehicle, and the front reinforcing bar is parallel to the outer contour frame.
[0014] Preferably, the included angle between the front frame of the vehicle and the outer contour frame is 75°~80°.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] High structural strength and rigidity: Through the "well"-shaped basic frame, multiple reinforcing ribs and cage-type front design, a high-rigidity and torsional-resistant overall structure is formed, providing a stable hardware platform for the autonomous driving system.
[0017] The layout is reasonable and the center of gravity is stable: the battery pack is centrally located, which effectively lowers the vehicle's center of gravity and improves driving and steering stability. The functional areas are clearly defined, with the power, energy, and sensing systems each in their own place without interfering with each other.
[0018] Excellent protection: The battery pack is fully protected by an independent and robust enclosure with additional protective partitions, ensuring a high level of safety. The cage-type front frame provides reliable protection for precision sensors.
[0019] Excellent sensor field of view: The sloping front frame design ensures that the core sensors have an unobstructed optimal field of view, which is a prerequisite for safe navigation of autonomous vehicles. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the frame of the unmanned delivery vehicle in this application;
[0021] Figure 2 This is a front view of the frame of the unmanned delivery vehicle in this application;
[0022] Figure 3 This is a three-dimensional structural diagram of the horizontal mounting frame in the unmanned delivery vehicle frame of this application.
[0023] Reference numerals: Horizontal mounting bracket 1, outer contour bracket 11, central partition bracket 12, front crossbeam 13, rear crossbeam 14, front frame 2, front frame 21, rear frame 22, bottom frame 23, top frame 24, front reinforcing bar 25, battery mounting bracket 3, battery vertical bracket 31, battery bottom frame 32, protective partition 33, front wheel bracket 4, front wheel reinforcing bracket 41, rear wheel bracket 5, rear wheel reinforcing bracket 51. Detailed Implementation
[0024] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0025] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values set forth in these embodiments should be interpreted as exemplary only and not as limiting.
[0026] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0027] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.
[0028] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.
[0029] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.
[0030] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.
[0031] like Figures 1 to 3As shown, an unmanned delivery vehicle frame includes a horizontal mounting frame 1, a front frame 2, a battery mounting frame 3, a front wheel frame 4, and a rear wheel frame 5. The front frame 2 is fixedly mounted on the upper front of the horizontal mounting frame 1 and is used to mount sensors and computing units. The battery mounting frame 3, front wheel frame 4, and rear wheel frame 5 are respectively located on the lower surface of the horizontal mounting frame 1, achieving a vertical separation between the power system and the support platform. The front wheel frame 4 and rear wheel frame 5 are spaced apart, providing mounting space for the drive motor and steering system. The battery mounting frame 3 is located between the front wheel frame 4 and rear wheel frame 5; this layout places the heaviest battery pack near the vehicle's center, which helps optimize the vehicle's center of gravity and improve driving stability. The front frame 2 is located directly above the front wheel frame 4, forming a compact, integrated layout that saves longitudinal space.
[0032] Furthermore, the horizontal mounting frame 1 serves as the foundation platform for the entire vehicle frame, comprising an outer contour frame 11, a central partition frame 12, a front crossbeam 13, and a rear crossbeam 14. Two parallel central partition frames 12 are fixed to the middle of the outer contour frame 11, dividing the lower space of the horizontal mounting frame 1 into front, middle, and rear areas, providing a positioning reference for the installation of different components. The front crossbeam 13 and rear crossbeam 14 are fixedly installed on the inner side of the outer contour frame 11 and are perpendicular to the central partition frames 12 closest to them, respectively. The two ends of the front and rear crossbeams 14 are fixedly connected to the inner wall of the horizontal mounting frame 1 and the central partition frame 12, respectively. The effect of this design is that the central partition frame 12, together with the front and rear cross frames 14, forms a strong "well" or "eye" shaped internal reinforcement structure, which greatly enhances the bending and torsional stiffness of the horizontal mounting frame 1 in the longitudinal and transverse directions, avoids deformation of the foundation platform caused by uneven load or road bumps, and provides a stable and reliable mounting foundation for the precision sensors of the upper front frame 2.
[0033] In a preferred embodiment of the present invention, the battery mounting rack 3 includes battery vertical frames 31 and a battery base frame 32. Four battery vertical frames 31 are mounted parallel to each other and vertically on the lower end face of the outer contour frame 11, with two battery vertical frames 31 on the same side coplanar with the central partition frame 12 on the same side. The battery base frame 32 is rectangular, and its four corners are fixedly connected to the lower ends of the four battery vertical frames 31. Thus, the battery vertical frames 31, battery base frame 32, outer contour frame 11, and central partition frame 12 together constitute a cubic battery storage compartment. The advantages of this design are: 1) It forms an independent battery compartment that runs through from top to bottom and is protected by structural components on all sides and at the bottom, providing excellent protection; 2) The battery vertical frame 31 and the central partition frame 12 are designed to be coplanar, so that the side wall of the battery compartment is integrated with the main load-bearing structure in the middle of the frame, further transferring the weight of the battery pack to the entire frame through a robust structure, avoiding stress concentration; 3) The modular compartment design facilitates the hoisting, placement and locking of standardized battery packs, greatly facilitating battery replacement and maintenance.
[0034] As a further preferred embodiment of the present invention, a protective partition 33 is respectively provided on the battery bottom frame 32 near the front wheel frame 4 and the rear wheel frame 5. The effect of this design is that the protective partition 33 can effectively prevent foreign objects such as gravel and mud kicked up by the front and rear wheels during driving from directly impacting the bottom of the battery pack, providing an additional protective layer for the battery pack and improving safety and service life.
[0035] As a further preferred embodiment of the present invention, a first reinforcing frame is provided. One end of each of the four first reinforcing frames is fixedly connected to the side wall of the four battery vertical frames 31, and the other end is fixedly connected to the lower end face of the outer contour frame 11. The effect of this design is that the first reinforcing frame forms a diagonal bracing structure between the battery vertical frames 31 and the outer contour frame 11, transforming the vertical support force of the battery compartment into a triangular stable structure, significantly enhancing the connection rigidity between the battery mounting frame 3 and the main frame, preventing the battery compartment from shaking during vehicle acceleration, braking, or bumps, and improving the overall structural reliability.
[0036] In a preferred embodiment of the present invention, the front wheel bracket 4 and the rear wheel bracket 5 are respectively vertically fixedly mounted on the lower end face of the outer contour bracket 11. The front wheel bracket 4, the outer contour bracket 11, and the battery mounting bracket 3 together form a semi-enclosed front wheel mounting cavity; similarly, the rear wheel bracket 5, the outer contour bracket 11, and the battery mounting bracket 3 form a semi-enclosed rear wheel mounting cavity. The advantage of this design is that the battery mounting bracket 3 serves as the common inner wall of the two wheel wells, realizing the sharing of structural components, simplifying the structure, reducing weight, and making the force transmission path more concise and efficient.
[0037] As a further preferred embodiment of the present invention, it includes a front wheel reinforcement frame 41 and a rear wheel reinforcement frame 51. The front wheel reinforcement frame 41 is inclined, with its two ends fixedly mounted on the front wheel frame 4 and the front crossbar 13, respectively; the rear wheel reinforcement frame 51 is also inclined, with its two ends fixedly mounted on the rear wheel frame 5 and the rear crossbar 14, respectively. The effect of this design is that the front and rear wheel reinforcement frames 51 connect the vertical wheel frame with the horizontal main load-bearing crossbar, effectively distributing the impact force and load borne by the wheel to the robust front crossbar 13 and rear crossbar 14 through the diagonal bracing, greatly improving the rigidity and impact resistance of the wheel frame mechanism, and reducing the risk of wheel frame deformation or damage due to emergency braking or severe bumps.
[0038] As a preferred embodiment of the present invention, the front frame 2 includes a front frame 21, a rear frame 22, a bottom frame 23, and a top frame 24. The bottom frame 23 is fixedly installed on the upper front end of the outer contour frame 11. The front frame 21 and the rear frame 22 are vertically fixedly installed on the bottom frame 23, and the top frame 24 is fixedly installed on top of them, forming a cage-like structure. The rear frame 22 is perpendicular to the outer contour frame 11, and the front frame 21 is inclined. The advantages of this design are: 1) The cage-like structure ensures that the front frame 2 has extremely high rigidity, effectively protecting the expensive sensors installed inside, such as lidar, cameras, and control units; 2) The inclined front frame 21 provides the sensors with a wide, unobstructed field of view forward and upward, which is the basis for environmental perception of autonomous vehicles. At the same time, the inclined surface also helps to reduce wind resistance and prevent the accumulation of debris.
[0039] As a further preferred embodiment of the present invention, a front reinforcing rod 25 is provided between the front frame 21 and the rear frame 22, and the front reinforcing rod 25 is parallel to the outer contour frame 11. The effect of this design is that the front reinforcing rod 25 adds a lateral connection between the front frame 21 and the rear frame 22, suppresses possible lateral deformation of the front frame 2, enhances the torsional stiffness of the entire cage structure, and ensures the accuracy and stability of the sensor mounting position.
[0040] As a further preferred embodiment of the present invention, the included angle between the front frame 21 and the outer contour frame 11 is 75°~80°. The advantage of this design is that this angle range represents the optimal compromise verified through extensive simulations and experiments. It ensures that the sensor has sufficiently excellent forward and upward sensing capabilities to meet the sensing needs of complex urban scenarios, while maintaining a streamlined shape for the front frame 2 to reduce air resistance. Simultaneously, it ensures sufficient connection strength between the front frame 21 and the main frame, avoiding structural fragility or limited field of view caused by excessively large or small angles.
[0041] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.
Claims
1. A frame for an unmanned delivery vehicle, characterized in that, The vehicle includes a horizontal mounting frame (1), a front frame (2), a battery mounting frame (3), a front wheel frame (4), and a rear wheel frame (5). The front frame (2) is fixedly mounted on the upper surface of the horizontal mounting frame (1). The battery mounting frame (3), the front wheel frame (4), and the rear wheel frame (5) are respectively located on the lower surface of the horizontal mounting frame (1). The front wheel frame (4) and the rear wheel frame (5) are spaced apart. The battery mounting frame (3) is located between the front wheel frame (4) and the rear wheel frame (5). The front frame (2) is located directly above the front wheel frame (4). The horizontal mounting frame (1) includes an outer contour frame (11), a central partition frame (12), a front crossbar (13), and a rear crossbar (14). Two central partition frames (12) are provided. The two central partition frames (12) are fixed in the middle of the outer contour frame (11) in parallel with each other. The front cross frame (13) and the rear cross frame (14) are fixedly installed on the inner side of the outer contour frame (11). The front cross frame (13) is perpendicular to the central partition frame (12) on the side near the front wheel frame (4). The two ends of the front cross frame (13) are respectively fixedly connected to the inner side wall of the horizontal mounting frame (1) and the central partition frame (12). The rear cross frame (14) is perpendicular to the central partition frame (12) on the side near the rear wheel frame (5). The two ends of the rear cross frame (14) are respectively fixedly connected to the inner side wall of the horizontal mounting frame (1) and the central partition frame (12).
2. The unmanned delivery vehicle frame according to claim 1, characterized in that, The battery mounting rack (3) includes a battery vertical frame (31) and a battery bottom frame (32). Four battery vertical frames (31) are provided. The four battery vertical frames (31) are installed parallel to each other and vertically on the lower end face of the outer contour frame (11). Two battery vertical frames (31) on the same side are set on the same plane as the middle partition frame (12) at the same position. The battery bottom frame (32) is rectangular. The lower ends of the four battery vertical frames (31) are fixedly connected to the four corners of the battery bottom frame (32). The battery vertical frames (31), battery bottom frame (32), outer contour frame (11) and middle partition frame (12) constitute a cubic battery storage compartment.
3. The unmanned delivery vehicle frame according to claim 2, characterized in that, A protective partition (33) is provided on the battery base frame (32) near the front wheel frame (4) and the rear wheel frame (5).
4. The unmanned delivery vehicle frame according to claim 2, characterized in that, The first reinforcing frame is provided, and four first reinforcing frames are provided. One end of each of the four first reinforcing frames is fixedly connected to the side wall of the four battery vertical frames (31), and the other end of each of the four first reinforcing frames is fixedly connected to the lower end face of the outer contour frame (11).
5. The unmanned delivery vehicle frame according to claim 1, characterized in that, The front wheel frame (4) and the rear wheel frame (5) are respectively fixedly installed vertically on the lower end face of the outer contour frame (11). The front wheel frame (4), the outer contour frame (11) and the battery mounting frame (3) form a semi-enclosed front wheel mounting cavity, and the rear wheel frame (5), the outer contour frame (11) and the battery mounting frame (3) form a semi-enclosed rear wheel mounting cavity.
6. The unmanned delivery vehicle frame according to claim 1, characterized in that, It includes a front wheel reinforcement frame (41) and a rear wheel reinforcement frame (51). The front wheel reinforcement frame (41) is inclined and its two ends are fixedly installed on the front wheel frame (4) and the front crossbar (13), respectively. The rear wheel reinforcement frame (51) is inclined and its two ends are fixedly installed on the rear wheel frame (5) and the rear crossbar (14), respectively.
7. The unmanned delivery vehicle frame according to claim 1, characterized in that, The front frame (2) includes a front frame (21), a rear frame (22), a bottom frame (23), and a top frame (24). The bottom frame (23) is fixedly installed on the upper surface of the outer contour frame (11) near the front wheel frame (4). The front frame (21) and the rear frame (22) are fixedly installed on the upper surface of the bottom frame (23). The top frame (24) is fixedly installed on the upper end of the front frame (21) and the rear frame (22). The rear frame (22) is perpendicular to the outer contour frame (11), and the front frame (21) is inclined.
8. The unmanned delivery vehicle frame according to claim 7, characterized in that, A front reinforcing rod (25) is provided between the front frame (21) and the rear frame (22) of the vehicle head, and the front reinforcing rod (25) is parallel to the outer contour frame (11).
9. The unmanned delivery vehicle frame according to claim 7, characterized in that, The included angle between the front frame (21) and the outer contour frame (11) is 75°~80°.